I used it for a while and left a review. The fact that it is safe for lip inflammation or allergic lips is a huge advantage. The color is a cool cherry shade and it's a water-based type, so you can adjust the transparency, which is great! I'd recommend it mainly to cool-toned people. If you apply it thickly, it becomes more intense, and if you apply a small amount, it has a lighter feel. It's generally on the lower side in terms of brightness. When you do your makeup in the plum~lavender~gray range and apply it, it matches perfectly, but when applied to the lips, it's more of a cherry tone rather than a full-on purple, so it also goes well with other color cosmetics! The photo was taken indoors on a cloudy day using an iPhone (backlit) and it's a double swatch.

It can be drying, so you have to apply lip balm or gloss with it. Otherwise, your lips will feel shrunken! Oh, and if you carry it around, it sometimes leaks when you open and close it, getting on your makeup pouch.

It didn't cause any allergies and the color was nice and natural. The plum color is pretty. I'd recommend it for cool-toned skin, but warm-toned skin should consider it as well.

It's very bitter. It feels like I'm taking medicine :( People on overseas websites were also complaining about how bitter it is.